Fanfiction.net newb probs

I just joined fanfiction.net, and, like, cool and all, BUT! Why in the name of all that is Holy do they not have some kind of rating system for the fics? I don't mean rated R or K or whatever, but a way of telling what's GOOD?!??!

It would be so easy to do and unbelievably useful. "Rate this fic: 1 2 3 4 5". Hell, MSN.com does it with their articles, so it can't be that hard.